This selection of Japanese companies consists primarily of large established firms in the chemical and manufacturing sectors. Many were founded in the early to mid-20th century. Notable examples include Sumitomo Electric Intercon't Prod, a global network of 414 companies, Asahi Kasei, providing healthcare products and advanced materials, AGC Group, a supplier of various types of glass and chemicals, and Toray Industries, Inc., developing fibers, textiles, and performance chemicals.
A significant cluster of these companies, such as Asahi Kasei, AGC Group, JSP, Kurita Group, and Fujifilm Group, are headquartered in Tokyo, indicating a concentration of these industries in the capital city. The companies demonstrate a broad application of chemical and manufacturing expertise across diverse fields, from automotive and electronics to healthcare and environmental solutions.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
SUMITOMO ELECTRIC INTERCON'T PROD (M) SBsumitomoelectric.com
A global network of 414 companies in 40 countries, originally focused on copper wire production, now diversified into automotive, infocommunications, electronics, environment, energy, and industrial materials |
289,000 | |||
| 2 |
Asahi Kaseiasahi-kasei.com
Global company providing healthcare products, residential solutions, and advanced materials to improve life quality and support sustainable development worldwide. |
10,369 | |||
| 3 | 4,786 | ||||
| 4 | 4,624 | ||||
| 5 |
KYOCERA Globalglobal.kyocera.com
Development of fine ceramics, semiconductor components, electronic devices, AI, IoT systems, and document solutions addressing critical global issues. |
4,375 | |||
| 6 | 4,235 | ||||
| 7 |
Toray Industries, Inc.toray.com
Development of fibers, textiles, performance chemicals, carbon fiber composites, environment engineering, pharmaceuticals, and medical products using advanced chemical technologies worldwide. |
3,225 | |||
| 8 |
Kuraraykuraray.com
A global specialty chemical company, focusing on fibers, resins, chemicals, and other products for various industries, committed to innovation and addressing social issues |
2,833 | |||
| 9 |
Mitsui Chemicals Groupmitsuichemicals.com
A multinational chemical company, listed on the Tokyo Stock Exchange, that develops environmentally friendly materials for various industries globally |
2,715 | |||
| 10 | 2,380 | ||||
| 11 |
KONICA MINOLTA, INC.konicaminolta.us
Development manufacturing sales multifunctional peripherals printers healthcare systems measuring instruments electronic materials optical products functional films |
2,344 | |||
| 12 |
Mitsubishi Chemical Groupmcgc.com
Leading innovative solutions in mobility, digital, medical, and food sectors to enhance well-being of people and the planet. |
1,904 | |||
| 13 |
Teijin Limitedteijin.com
Innovative global group specializing in materials, healthcare, and IT solutions, focused on environmental value, safety, and health consciousness |
1,882 | |||
| 14 |
Kurita Groupkurita.co.jp
A global leader in water treatment solutions, offering chemicals, facilities, and services worldwide to create new value for customers and society |
1,754 | |||
| 15 |
Fujifilm Groupholdings.fujifilm.com
A holding company overseeing FUJIFILM Group's diverse businesses, adapting to digitalization by expanding into multiple growth fields beyond traditional photography materials |
1,715 | |||
| 16 |
Resonacresonac.com
This company specializes in cutting-edge functional materials technologies and aims to co-create a better society through innovative solutions in the chemical industry |
1,691 | |||
| 17 |
Sumitomo Chemicalsumitomo-chem.co.jp
A company originally addressing air pollution from copper smelting, now focuses on diverse businesses driven by technological innovation to benefit society |
1,636 | |||
| 18 |
Takasago International Corporationtakasago.com
A global leader in flavor, fragrance, and aroma ingredients, specializing in developing innovative products for food, beverage, and personal care industries worldwide |
1,626 | |||
| 19 |
SAKATA INX CORPORATIONinx.co.jp
Specializing in manufacturing printing inks and functional materials, we innovate with earth-friendly technology to enhance life with color and happiness |
1,567 | |||
| 20 |
Ajinomoto Co., Inc.ajinomoto.com
Global food and amino acid business, uses bioscience and fine chemical technologies to support healthy lives through sustainable solutions. |
1,523 | |||
| 21 |
SEKISUI CHEMICALsekisui.co.jp
Global chemical manufacturer established in 1947, operating in housing, social infrastructure, high-performance materials, and life sciences for a sustainable society. |
1,455 | |||
| 22 |
Nagase & Co., Ltd.nagase.com
A company with nearly 200 years of expertise in various industries helping partners identify, develop, and expand new business opportunities through innovative solutions |
1,175 | |||
| 23 |
Nitto Denko Corporationnitto.com
Development and supply of diverse products for electronics, automobiles, housing, infrastructure, environment, and medical fields worldwide with innovation focus. |
1,174 | |||
| 24 |
ENEOShd.eneos.co.jp
Leading energy and materials group in Asia, focusing on low carbon solutions and advanced product development in collaboration with top Japanese automotive manufacturers |
1,120 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 25 |
Toyo Seikan Grouptskg-hd.com
A global packaging manufacturer that produces containers from metal, plastic, paper, and glass, aiming to create new societal value |
950 | |||
| 26 |
DIC Corporationdic-global.com
Established in 1908, the company specializes in manufacturing printing inks, organic pigments, and synthetic resins, offering solutions for various industries worldwide |
831 | |||
| 27 |
Nippon Steel Corporationnipponsteel.com
A global steelmaker based in Japan focused on technology, cost efficiency, and global presence, striving to become the best in the industry |
734 | |||
| 28 |
NIPPON SHOKUBAIshokubai.co.jp
A global chemical company since 1941, specializing in unique catalyst technology and supplying products like ethylene oxide, acrylic acid, and superabsorbent polymer |
715 | |||
| 29 |
FURUKAWA ELECTRIC GROUPfurukawa.co.jp
A global leader in developing advanced materials and technologies for telecommunications, energy, automotive, and electronics industries to enable a sustainable society |
633 | |||
| 30 |
Sumitomo Chemicalsumitomo-chem.co.jp
Global provider of plant protection chemicals including insecticides, fungicides, herbicides, and plant growth regulators sold in over 110 countries worldwide |
529 | |||
| 31 |
Polyplasticspolyplastics-global.com
Specialized manufacturer of high performance resins, offering engineering polymer solutions for automotive, home appliances, and various industries worldwide |
503 | |||
| 32 |
artience group (former Toyo Ink Group)artiencegroup.com
A Japan-based innovator providing diverse fine chemical products globally, using core technologies in coatings, dispersions, polymers, and color materials |
460 | |||
| 33 |
JFE Steel Corporationjfe-steel.co.jp
A steelmaker using innovative technology to produce steel products from iron ore, while also developing environmentally friendly ironmaking processes and steel materials |
453 | |||
| 34 |
Nippon Electric Glass / NEGneg.co.jp
Manufacture and sale of specialty glass products and glassmaking machinery, focusing on advanced creative manufacturing and environmental sustainability. |
446 | |||
| 35 |
Tamura Corporationtamuracorp.com
Manufacture and supply of electronic components, chemical mounting, and information equipment supporting industries, energy, and social infrastructure sectors. |
384 | |||
| 36 |
JSR Corporationjsr.co.jp
Development and supply of innovative chemical materials aimed at creating new value and contributing to societal advancement and future generations. |
376 | |||
| 37 |
SHINAGAWA REFRA CO., LTD.shinagawa.co.jp
Established in 1875, pioneers in manufacturing refractory bricks supporting key industries and contributing to society's progress and development |
355 | |||
| 38 |
UBE Corporationube.com
Manufacturing technologies delivering safe, environmentally friendly chemical products addressing global environmental issues and contributing to health and enriched society. |
346 | |||
| 39 | 
住友化学（株）sumitomo-chem.co.jp
A chemicals company based in Tokyo, Japan, specializing in the manufacture and distribution of various chemical products |
337 | |||
| 40 |
Niterra Co., Ltd.niterragroup.com
A manufacturer specializing in fine ceramics, offering comprehensive products and services |
335 | |||
| 41 |
Nisshanissha.com
Global company creating technology & economic value through core technologies like Laminating, Coating, Molding, and Printing in 4 diverse segments |
324 | |||
| 42 |
Idemitsu Kosan Co.,Ltd.idemitsu.com
Engages in global oil, fuel, and chemical distribution. Specializes in lubricants, performance chemicals, engineering plastics, and electronic materials, alongside resource businesses like coal and uranium. |
314 | |||
| 43 |
Kao Asia & Oceaniakao.com
A global consumer product company focusing on beauty care, health care, fabric & home care, and chemical products with a customer-centric approach |
288 | |||
| 44 |
Lion Corporation Japanlion.co.jp
A leading Japanese company established in 1891, producing and marketing a wide range of consumer products and high-performance chemicals for various industries |
278 | |||
| 45 |
SEKISUI S-LECs-lecfilm.com
A global leader in PVB interlayer technology for laminated glass, providing solutions for safety, security, design, UV blocking, sound acoustic, and more |
269 | |||
| 46 |
The Yokohama Rubber Co., Ltd.y-yokohama.com
Manufactures and sells a wide range of tires, rubber products, conveyor belts, marine equipment, and other products for various industries |
216 | |||
| 47 |
Tosoh Corporationtosoh.com
Global chemical company supplying specialty and commodity chemicals to industries including automotive, electronics, bioscience, construction, and environmental sectors. |
188 | |||
| 48 |
Nikkei MC Aluminium Co., Ltd.nmca.jp
Specializing in aluminum alloys, the company focuses on developing new alloys, expanding overseas, and producing environmentally friendly recycled alloys for automotive and electrical industries worldwide |
24 | |||
| 49 |
Tras Ltd.tras.co.jp
Specializing in advanced composite materials production, including carbon fibers and natural fibers for various applications |
10 | |||
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
More company lists in Japan
- The largest companies in Japan 932
- Multinational companies in Japan 470
- Companies with in-house R&D in Japan 287
- Manufacturers in Japan 224
- Publicly traded companies in Japan 209
- Corporate groups and holding companies in Japan 181
- Hardware manufacturers in Japan 142
- IT Services and IT Consulting companies in Japan 105
- Education providers in Japan 75
- Companies with a mobile app in Japan 69
- Professional services firms in Japan 69
- Electronics and semiconductor companies in Japan 68
- IT services companies in Japan 64
- AI companies in Japan 63
- Automotive manufacturers and suppliers in Japan 60
- Critical infrastructure operators in Japan 59
- Higher Education companies in Japan 57
- Research institutes in Japan 55
- Consulting firms in Japan 52
- Financial services firms in Japan 50
- Public sector organisations in Japan 48
- Energy companies in Japan 45
- Retail chains in Japan 45
- Appliances, Electrical, and Electronics Manufacturing companies in Japan 40